Add the decoder_version() function.

README.rst

@@ -58,7 +58,10 @@ Example::
 
   std.log("Using brotli encoder version: " + brotli.encoder_version());
 
-#$Function STRING decoder_version()
+.. _vmod_brotli.decoder_version:
+
+STRING decoder_version()
+------------------------
 
 Return the version string for the brotli decoder.
 

src/tests/00basic.vtc

@@ -37,6 +37,10 @@ varnish v1 -vcl {
 		if (!resp.http.x-encoder-version) {
 			set resp.status = 500;
 		}
+		set resp.http.x-decoder-version = brotli.decoder_version();
+		if (!resp.http.x-decoder-version) {
+			set resp.status = 500;
+		}
 		return(deliver);
 	}
 }
@@ -47,4 +51,5 @@ client c1 {
 	expect resp.status == 200
 	expect resp.http.x-version ~ "^.+$"
 	expect resp.http.x-encoder-version ~ {^\d+\.\d+\.\d+$}
+	expect resp.http.x-decoder-version ~ {^\d+\.\d+\.\d+$}
 } -run

src/vfp_brotli.c

@@ -443,13 +443,11 @@ vmod_encoder_version(VRT_CTX)
 	return (brotli_version(ctx, BrotliEncoderVersion()));
 }
 
-#if 0
 VCL_STRING
 vmod_decoder_version(VRT_CTX)
 {
 	return (brotli_version(ctx, BrotliDecoderVersion()));
 }
-#endif
 
 VCL_STRING
 vmod_version(VRT_CTX)

src/vfp_brotli.vcc

@@ -51,7 +51,7 @@ Example::
 
   std.log("Using brotli encoder version: " + brotli.encoder_version());
 
-#$Function STRING decoder_version()
+$Function STRING decoder_version()
 
 Return the version string for the brotli decoder.